Hello Fellow Yuneec Pilot!
Join our free Yuneec community and remove this annoying banner!
Sign up

Fairly loud hum from rear of Typhoon H

Joined
Aug 16, 2017
Messages
39
Reaction score
11
Age
69
I'm getting a fairly loud hum from the rear fan section of the Typhoon H. I tried some light compressed air shots but nothing happened. It does not change pitch and is sustained. Any concerns?
 

DoomMeister

Moderator/Tech Junkie
Staff member
Premium Pilot
Joined
Dec 25, 2017
Messages
7,790
Reaction score
4,628
Location
Genesee, MI USA
If you have RealSense check the fan for cracked or broken fins. The only other fan in the system is on the CGO3+.
 

WTFDproject

Moderator
Staff member
Premium Pilot
Joined
Oct 27, 2018
Messages
3,574
Reaction score
2,828
Location
North Carolina Piedmont, USA
Assuming by "fan" you mean the propellors:
How many flight hours on the motors?
Is the hum present when running without the props?
Do any of the motors seem warmer than others after running?
Do all the motors feel about the same when turning them by hand?
 
Joined
Aug 16, 2017
Messages
39
Reaction score
11
Age
69
Thanks for the help. There is a small fan that is the culprit, I think, that is in the same "module" as the rear indicator light. Does not seem to be part of the Real Sense system, which is present on this craft. The noise starts as soon as the bird is turned on without engaging the props. The fan does spin. I check motor temp regularly with a hand temp gun and these are doing well. Keep up the suggestions. I am assuming I will need to ground this bird until this is fixed, maybe? aaadronenoise.mp4
 

DoomMeister

Moderator/Tech Junkie
Staff member
Premium Pilot
Joined
Dec 25, 2017
Messages
7,790
Reaction score
4,628
Location
Genesee, MI USA
That small fan on the bottom below the Main LED is the cooling fan for the RealSense module. It is very likely a piece of foreign material has been sucked into it or there is a cracked or missing fan blade.

The fan is replaceable.
 
Joined
Aug 16, 2017
Messages
39
Reaction score
11
Age
69
Thank you so much DoomMeister!! You know, I have used Real Sense probably a dozen times and most just for fun experimentation. I just don't fly that way usually. I may just remove it if it gets worse? I may just blast it with a firmer spray of compressed air.
 
Joined
Jun 6, 2018
Messages
345
Reaction score
208
Age
24
Location
Hamburg, Germany
That small fan on the bottom below the Main LED is the cooling fan for the RealSense module. It is very likely a piece of foreign material has been sucked into it or there is a cracked or missing fan blade.
I totally agree. Could also be a damaged bearing on the fan. The fan is only plugged in an can be replaced very easily. I would not recommend to remove the fan.
 
  • Like
Reactions: DoomMeister

DoomMeister

Moderator/Tech Junkie
Staff member
Premium Pilot
Joined
Dec 25, 2017
Messages
7,790
Reaction score
4,628
Location
Genesee, MI USA
Thank you so much DoomMeister!! You know, I have used Real Sense probably a dozen times and most just for fun experimentation. I just don't fly that way usually. I may just remove it if it gets worse? I may just blast it with a firmer spray of compressed air.
It is not difficult to take the RS module off and inspect the fan. When reinstalling use care with the screws as they mount in plastic. Insert them into their respective holes and when you go to tighten them push in a bit and turn backwards until you feel the slight tick when it lines up with the old screw threads in the plastic. Then tighten until they just bottom out. The RS unit weighs next to nothing.
 
  • Like
Reactions: Pier2162

New Posts

Members online

No members online now.

Forum statistics

Threads
20,714
Messages
239,020
Members
26,402
Latest member
scirocco84